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15 条记录 (耗时 0.024 秒)

    Drive apparatus for optical recording medium
    2.
    发明授权
    Drive apparatus for optical recording medium 失效
    光记录介质驱动装置

    公开(公告)号：US06510112B1

    公开(公告)日：2003-01-21

    申请号：US09443438

    申请日：1999-11-19

    申请人： Masato Sakamoto ,  Katsunori Tamamura ,  Kazuhiko Oogami ,  Norikazu Tada ,  Atsushi Kusaka ,  Akihito Fujiwara ,  Mayumi Takahashi

    发明人： Masato Sakamoto ,  Katsunori Tamamura ,  Kazuhiko Oogami ,  Norikazu Tada ,  Atsushi Kusaka ,  Akihito Fujiwara ,  Mayumi Takahashi

    IPC分类号： G11B700

    CPC分类号： G11B7/0948 ,  G11B7/0903

    摘要： An apparatus for driving an optical pickup for a tracking servo control. The apparatus includes an emitting device disposed in the optical pickup for emitting a main beam to a first position on an information track of a recording medium and emitting at least two subsidiary beams to a second position and a third position on the information track of the recording medium, respectively. The positions of the main beam and the subsidiary beams are determined appropriately for a three beam method. The apparatus further includes: a tracking error signal generating device for generating a tracking error signal using returned light beams of the subsidiary beams from the recording medium; a driving device for moving the first position of the main beam and the second position and the third position of the subsidiary beams with respect to the recording medium; a tracking control device for outputting a driving signal based on the tracking error signal to the driving device; and a detecting device for detecting a damaged part on the recording medium. The tracking control device generates a pulse signal having a polarity opposite to a disturbance part of the driving signal generated due to at least one of the subsidiary beams passing on the damaged part, and uses this pulse signal as a part of the driving signal.

    摘要翻译： 一种用于驱动用于跟踪伺服控制的光学拾取器的装置。 该装置包括设置在光学拾取器中的发射装置，用于将主光束发射到记录介质的信息轨道上的第一位置，并将至少两个辅助光束发射到记录的信息轨道上的第二位置和第三位置 中等。 主波束和辅助波束的位置适用于三波束法。 该装置还包括：跟踪误差信号发生装置，用于使用从记录介质返回的辅助光束的光束产生跟踪误差信号; 用于使主光束的第一位置和辅助光束的第二位置和第三位置相对于记录介质移动的驱动装置; 跟踪控制装置，用于将驱动信号基于跟踪误差信号输出到驱动装置; 以及用于检测记录介质上的损坏部分的检测装置。 跟踪控制装置产生与通过损坏部分的至少一个辅助光束所产生的驱动信号的干扰部分相反极性的脉冲信号，并将该脉冲信号用作驱动信号的一部分。

    Interconnection agreement determining system, apparatus, and method
    5.
    发明申请
    Interconnection agreement determining system, apparatus, and method 有权
    互连协议确定系统，装置和方法

    公开(公告)号：US20050143076A1

    公开(公告)日：2005-06-30

    申请号：US11017719

    申请日：2004-12-22

    申请人： Keiji Machida ,  Tooru Hasegawa ,  Mayumi Takahashi ,  Takeshi Ujino

    发明人： Keiji Machida ,  Tooru Hasegawa ,  Mayumi Takahashi ,  Takeshi Ujino

    IPC分类号： H04M3/42 ,  H04L12/58 ,  H04W4/14 ,  H04W8/10 ,  H04W8/28 ,  H04W88/18 ,  H04Q7/20

    CPC分类号： H04W88/184 ,  H04W4/14 ,  H04W8/10 ,  H04W8/28

    摘要： There are provided an interconnection agreement determining system, apparatus, and method capable of accurately determining whether the carrier to which an originating communication terminal subscribes and the carrier to which a receiving communication terminal subscribes have a short message interconnection agreement with each other, even if the receiving communication terminal uses number portability. When a location-area MSC 20 receives an SMS originating signal, an interrogating unit 21 sends an SRIforSM signal including the MSISDN of a receiving terminal 10b to an HLR 30. When the location-area MSC 20 receives an SRIforSMack signal from the HLR 30, a subscriber-identification-information obtaining unit 22 obtains an IMUI contained in the SRIforSMack. An on-origination carrier identifying unit 23 identifies from the IMUI the carrier to which the receiving terminal 10b subscribes. The location-area MSC 20 determines whether the carriers have an SMS interconnection agreement with each other, on the basis of identification made by an on-origination carrier identifying unit 23.

    摘要翻译： 提供了一种互连协议确定系统，装置和方法，其能够准确地确定始发通信终端订阅的载波和接收通信终端所订阅的载波是否具有彼此的短消息互连协议，即使 接收通信终端使用号码可携带性。 当位置区域MSC20接收到SMS发起信号时，询问单元21将包括接收终端10b的MSISDN的SRIforSM信号发送到HLR 30。当位置区域MSC 20从HLR 30接收到SRIforSMack信号时 用户识别信息获取单元22获得包含在SRIforSMack中的IMUI。 原始运营商识别单元23从IMUI识别接收终端10b所订阅的载波。 位置区域MSC20基于由发端载波识别单元23进行的识别来确定载波是否具有彼此的SMS互连协议。

    Automatic gain control apparatus for optical disc player
    6.
    发明授权
    Automatic gain control apparatus for optical disc player 失效
    光盘播放机自动增益控制装置

    公开(公告)号：US5757748A

    公开(公告)日：1998-05-26

    申请号：US766876

    申请日：1996-12-13

    申请人： Kazuhiro Kiyoura ,  Yoshifumi Fujino ,  Yoshimichi Nishio ,  Takeshi Matsumoto ,  Mayumi Takahashi ,  Koichiro Haraguchi

    发明人： Kazuhiro Kiyoura ,  Yoshifumi Fujino ,  Yoshimichi Nishio ,  Takeshi Matsumoto ,  Mayumi Takahashi ,  Koichiro Haraguchi

    IPC分类号： G11B21/10 ,  G11B7/09 ,  G11B7/00

    CPC分类号： G11B7/0941

    摘要： An automatic gain control apparatus for an optical disc player is equipped in a servo loop to perform a servo control by use of an error signal in the optical disc player. The apparatus is provided with: a gain control device for controlling a gain of the servo loop to have a controlled gain value corresponding to a signal level of the error signal in one series of automatic gain controlling operation; a memory for storing the controlled gain value as a previously controlled gain value in said one series of automatic gain controlling operation; a comparison device for comparing the previously controlled gain value, which is stored in the memory, with a presently controlled gain value of the gain of the servo loop, which is presently controlled by the gain control device in another series of automatic gain controlling operation after said one series of automatic gain controlling operation; and a controller for instructing the gain control device to control the gain of the servo loop again if a difference between the previously controlled gain value and the presently controlled gain value is not less than a predetermined value according to a comparison result of the comparison device in said another series of automatic gain controlling operation.

    摘要翻译： 用于光盘播放器的自动增益控制装置装备在伺服环路中，以通过使用光盘播放器中的错​​误信号执行伺服控制。 该装置设置有：增益控制装置，用于在一系列自动增益控制操作中控制伺服环路的增益以具有对应于误差信号的信号电平的受控增益值; 存储器，用于在所述一系列自动增益控制操作中存储受控增益值作为先前控制的增益值; 比较装置，用于将存储在存储器中的先前控制的增益值与当前控制的伺服环路增益的增益值进行比较，所述增益控制增益值由当前由增益控制装置在另一系列自动增益控制操作中控制的增益控制增益值 说一系列自动增益控制操作; 以及控制器，用于如果根据比较装置的比较结果，如果先前控制的增益值与当前控制的增益值之间的差不小于预定值，则指示增益控制装置再次控制伺服环路的增益 表示另一系列自动增益控制操作。

    Gain controlling apparatus and method, information reproducing apparatus and method, and information recording apparatus and method
    10.
    发明授权
    Gain controlling apparatus and method, information reproducing apparatus and method, and information recording apparatus and method 失效
    增益控制装置和方法，信息再现装置和方法以及信息记录装置和方法

    公开(公告)号：US06606284B1

    公开(公告)日：2003-08-12

    申请号：US09444571

    申请日：1999-11-19

    申请人： Masato Sakamoto ,  Katsunori Tamamura ,  Kazuhiko Oogami ,  Norikazu Tada ,  Atsushi Kusaka ,  Akihito Fujiwara ,  Mayumi Takahashi

    发明人： Masato Sakamoto ,  Katsunori Tamamura ,  Kazuhiko Oogami ,  Norikazu Tada ,  Atsushi Kusaka ,  Akihito Fujiwara ,  Mayumi Takahashi

    IPC分类号： G11B7095

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0941 ,  G11B7/0945 ,  G11B20/10009

    摘要： A gain controlling apparatus includes a pre-amplifier for roughly adjusting a gain of a generation signal, which is generated on the basis of a reception signal from an optical disc; a variable amplifier for finely adjusting the gain on the basis of the roughly adjusted gain by the pre-amplifier; a memory for storing a plurality of values for adjusting the gain generated during a previous occasion of gain adjustment in time series; and a controlling device for controlling the pre-amplifier at a current occasion of gain adjustment on the basis of the respective stored values for adjusting the gain and controlling the variable amplifier, wherein the controlling device comprises a predicting device for predicting a current adjustment value, namely an adjusted value for the gain roughly adjusted at the current occasion by the pre-amplifier, and the controlling device controls the pre-amplifier on the basis of the predicted current adjustment value.

    摘要翻译： 增益控制装置包括：前置放大器，用于粗略地调整基于来自光盘的接收信号产生的发生信号的增益; 一个可变放大器，用于根据前置放大器粗略调节的增益来精细调整增益; 存储器，用于存储用于调整在先前的时间序列增益调整期间产生的增益的值; 以及控制装置，用于根据用于调节增益的各个存储值和控制可变放大器，在当前增益调整的情况下控制前置放大器，其中控制装置包括用于预测当前调整值的预测装置， 即通过前置放大器在当前情况下大致调整的增益的调整值，并且控制装置根据预测的电流调整值来控制前置放大器。